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Article no.: 338425 12
Tap extension with HB flat, Type: 12
Article no.: 338420 12
Article code:
Product details
Technical Data
| Manufacturer’s designation | Gewindebohrer-Verlängerung mit HB-Fläche | |
| Interface position | on the machine; on the workpiece | |
| Holder type | plain shank; plain shank | |
| Interface coding | ZYL01601005; ZYL01600105 | |
| Holder shape | straight clamping flat; plain shank | |
| Holder version | metric; metric | |
| Holder size, metric | 16 mm; 16 mm | |
| Type of mounting | spigot; hole (internal mounting) | |
| Holder tolerance class | h6 | |
| Shank diameter DS | 16 mm; 16 mm | |
| Length of shank LS | 90 mm | |
| Shank type | HB | |
| Interface on machine side | plain shank | |
| Min. clamping diameter D1 | 16 mm | |
| Max. clamping diameter D1 | 16 mm | |
| Gauge length A | 110 mm | |
| Format | long | |
| Suitable for tapping | yes | |
| Size of tap, min. D1 | M20 | |
| Size of tap, max. D1 | M20 | |
| Width across flats SW | 12 mm | |
| Interface | joint 1; joint 2 | |
| Type of product | toolholder extension | |
| Overall length L | 200 mm | |
| Standard | DIN 1835 B | |
| With width across flats | yes | |
| Content | 1 pcs. |
Identification & Classification
| Article number | 338420 12 | |
| EAN / GTIN | 4045197812506 | |
| Manufacturer number | 338420 12 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Description
Version:
- Long and extra long version.
- The front end of the extension acts as a collet. The collet is clamped to the tap by hand-tightening the knurled clamping nut.
- The drive torque is transmitted via the square drive.
- The rear part of the extension is to DIN, so that the extension can be mounted in quick-change tapping collets or ER tapping collets with a square drive.
h6 shank with Weldon flat for use in Weldon/shrink-fit chucks or hydraulic chucks.
Application:
For tapping in confined places, such as recesses, offsets, sharp edges on jigs, extremely deep internal threads, or directly into casting walls.
Note:
Alternative hexagon collet for fixing the tap available on request.